| Title |
Analysis of Relationship Between Compressive Strength and Compaction Ratio of Roller-Compacted Concrete Pavement |
| Authors |
정건우(Chung, Gun Woo) ; 송시훈(Song, Si Hoon) ; 이승우(Lee, Seung Woo) |
| DOI |
https://doi.org/10.12652/Ksce.2016.36.6.1117 |
| Keywords |
롤러전압콘크리트포장;다짐도;강도비 Roller Compacted Concrete Pavement (RCCP);Compaction ratio;Compressive strength ratio |
| Abstract |
Roller-Compacted Concrete Pavement (RCCP) is a type of pavement that shares conventional concrete pavement material characteristics and asphalt pavement construction characteristics. Even though RCCP is compacted in the same way and have similar aggregate gradation to asphalt pavements, its materials and structural performance properties are similar to those of conventional concrete pavement. With cement hydration and aggregate interlock, Roller-Compacted Concrete or RCC can provide strength properties equal to those of conventional concrete with low cement content. Therefore, compaction ratio of RCC can highly influence on its strength. In general, 95% of compaction ratio is required for proper strength development. RCC strength can be highly influenced by compaction energy which depends on compaction equipment and compaction method. Therefore, it is necessary to analyze the relationship between compressive strength and compaction ratio of RCC. RCCP specimens were produced at different compaction ratio by using different compaction methods and energies. The compaction ratio was defined by the ratio of the specimen's dry density and its maximum dry density. The maximum dry density was obtained from Modified Proctor test. 28 days compressive strength corresponding to each compaction ratio case was tested. Finally, the relationship between compressive strength and compaction ratio can be analyzed. For application of roller-compacted concrete in domestic construction site, the relationship is important for field compaction management. |